/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controle.usuario;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import persistencia.dao.AbstractDAO;
import persistencia.objetos.Usuarios;

/**
 *
 * @author Milton
 */
public class Logon extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        List<Usuarios> use=null;

        try {

            //obtem dados do cliente
            String login = request.getParameter("campoEmail");
            String senha = request.getParameter("campoSenha");

            if(login!=null || senha!=null){                      
                if(!login.equals("") || !senha.equals("")){
                    //consulta bd
                   String cond = " email='" +login+ "' and senha='" +senha+ "'";  
                   use = new AbstractDAO().consultar("Usuarios", cond);
                   
                   //Autenticação
                   if(!use.isEmpty()){
                        Usuarios user = (Usuarios) use.get(0);

                        //Cria sessão
                        Sessao ses = new Sessao(request);
                        ses.registraSessao(user);
                       

                        response.sendRedirect("/ResTI/Interface/Principal.jsp");
                        /*Dispachar
                        String url = "/Interface/Principal.jsp";

                        ServletContext context = getServletContext();
                        RequestDispatcher despachante = context.getRequestDispatcher(url);
                        despachante.forward(request, response);
                        */
                        //out.println("Nome: "+user.getNome()+" "+user.getEmail());
                   }else{
                       response.sendRedirect("/ResTI/");
                   }
                    
                 }else{
                    response.sendRedirect("/ResTI/"); 
                    /*
                    out.print(
                    "<script type='text/javascript'>"+
                    "alert('Usuario:"+login+" Senha:"+senha+"!');"+
                    "location.href = '/ResTI/'; "+
                    " </script>");

                     */
                }       
            }
             else{
                 response.sendRedirect("/ResTI/"); 
             }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
